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Finding the Fourth Proportional to 373,257.40, 559,886.10 and 123,939.40

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Solution

The fourth proportional to 373,257.40, 559,886.10 and 123,939.40 is: 185,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,257.40 : 559,886.10 = 123,939.40 : x
  2. Step 2: Convert to fraction form
    373,257.40/559,886.10 = 123,939.40/x
  3. Step 3: Cross multiply
    373,257.40x = 559,886.10 × 123,939.40
  4. Step 4: Simplify right side
    373,257.40x = 69,391,947,302.34
  5. Step 5: Solve for x
    x = 69,391,947,302.34/373,257.40
  6. Step 6: Final answer
    x = 185,909.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.